Impasto n. : The thickness of the layer or body of pigment applied by the painter to his canvas with especial reference to the juxtaposition of different colors and tints in forming a harmonious whole.

Example:
How do oil painters do Impasto?

Taxonomy
painting, impasto painting, painting technique, paint, canvas, free encyclopedia, texture, paste, Italian word, language, pottery type, search, Crags, Crevices, Taos Mountain, Trail Home, early 20th century, landscape.

Defination from the web:
impasto most commonly refers to a technique used in painting, where paint is laid on an area of the surface ... When dry, impasto provides texture, the paint coming out of the canvas. ...